Unit Conversions and Fractions

The video tutorial explains how to convert lengths using the standard measurement system by employing unit fractions. It demonstrates the conversion of 2.5 miles to feet and 20,000 inches to miles, highlighting the use of direct and multiple unit fractions for accurate conversions. The tutorial also covers rounding and obtaining exact fractional values.

What is a unit fraction?

• A fraction that is always less than 1

• A fraction with the same units in numerator and denominator

• A fraction equal to 1 with different units in numerator and denominator

• A fraction used only for converting weights

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CCSS.5.MD.A.1

What is the first step in converting 2.5 miles to feet?

• Convert miles to inches first

• Divide 2.5 by 5,280

• Multiply 2.5 by 1

• Write 2.5 miles as a fraction over 1

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CCSS.4.MD.A.1

What is the conversion factor from miles to feet?

• 1 mile = 5,280 feet

• 1 mile = 1,000 feet

• 1 mile = 3,000 feet

• 1 mile = 6,000 feet

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CCSS.2.MD.A.2

How many feet are there in 2.5 miles?

• 15,000 feet

• 12,000 feet

• 10,000 feet

• 13,200 feet

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CCSS.2.MD.A.2

What is the first step in converting 20,000 inches to miles?

• Convert inches to centimeters

• Convert inches to yards

• Convert inches to meters

• Convert inches to feet

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CCSS.4.MD.A.1

How many inches are there in one foot?

• 20 inches

• 12 inches

• 15 inches

• 10 inches

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CCSS.4.MD.A.1

What is the conversion factor from feet to miles?

• 1 mile = 5,280 feet

• 1 mile = 6,000 feet

• 1 mile = 1,000 feet

• 1 mile = 3,000 feet

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CCSS.6.RP.A.3D

Approximately how many miles are there in 20,000 inches?

• 0.316 miles

• 0.4 miles

• 0.5 miles

• 0.25 miles

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CCSS.6.RP.A.3D

What is the exact fractional value of 20,000 inches in miles?

• 200/396 miles

• 150/396 miles

• 100/396 miles

• 125/396 miles

What tool can be used to convert a decimal to a fraction?

• Calculator

• Protractor

• Compass

• Ruler